摘要
采用非定常势流理论对鱼类的尾鳍摆动推进功能进行了一系列的分析。着重考察了尾鳍展向变形对中等以上展弦比的尾鳍作纵向波动时的推进性能的影响,以及底栖鱼类近底游动时的壁面效应。
Based on the unsteady incompressible potential flow theory, the swimming performance of the caudal fin is further studied. The effect of spanwise deformation of a caudal fin with moderate to large aspect ratio on its chordwise undulation propulsion, and the effect of closeness to the ground on the swimming performance of some bottom-living fishes are examined in this paper.
关键词
鱼类
尾鳍
生物力学
非定常流
波动
animal locomotion, biomechanics, unsteady flow.
